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  • Title: Forensically Important Boettcherisca peregrina (Diptera: Sarcophagidae) in China: Development Pattern and Significance for Estimating Postmortem Interval.
    Author: Wang Y, Wang JF, Zhang YN, Tao LY, Wang M.
    Journal: J Med Entomol; 2017 Nov 07; 54(6):1491-1497. PubMed ID: 28981829.
    Abstract:
    Sarcosaprophagous flesh flies are insect species frequently found on corpses, and their developmental patterns can be used as reliable indicators for estimating minimum postmortem interval (PMImin). In this study, the Boettcherisca peregrina Robineau-Desvoidy was reared at seven constant temperatures ranging from 16 to 34 °C to investigate the indexes of development duration and larval body length. Using these results, we generated three development models, including isomorphen diagram, isomegalen diagram, and thermal summation model. Regression analysis was conducted to obtain simulation equations of the variation in larval body length with time after larviposition, and variation in time after larviposition with body length. The developmental durations of B. peregrina from larviposition to adult eclosion under 16, 19, 22, 25, 28, 31 and 34 °C were 1,064.7 ± 34.8, 756.0 ± 19.0, 559.6 ± 5.5, 414.3 ± 3.9, 315.0 ± 2.0, 278.0 ± 4.0, and 258.0 ± 3.5 h, respectively. The developmental threshold temperature of B. peregrina was 10.87 ± 0.49 °C, and the thermal summation constant was 5,809.7 ± 291.4 degree days. The results of this study provide basic data for the use of B. peregrina for estimating PMImin.
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